KR101550475B1 - Modular device for multi-axial insulation against vibration and impacts, based on elastomer - Google Patents

Abstract

The invention related to a device comprising at least three insulation modules distributed around vibration equipment. Each module comprises at least two rigid parts, at least one of said parts being an outer part fixed to the carrier structure and at least one of said parts being an inner part fixed to the equipment or the stand (3) thereof. At least one elastomer insulating plug connects an inner part and an outer part and at least one of said parts carries two longitudinal flexible abutments and two tangential flexible abutments which each have a free end facing another respectively outer or inner rigid part, said free end being at a distance from the inner part in an idle position. The invention can be applied to satellite equipment.

Description

[0001] MODULAR DEVICE FOR MULTI-AXIAL INSULATION AGAINST VIBRATION AND IMPACTS, BASED ON ELASTOMER [0002]

The present invention relates to an apparatus and method for generating and delivering vibrations to a support structure of an apparatus, such as, for example, when an item of a vibrating apparatus includes at least one element that rotates / rotates and moves in a periodic translational motion manner The term "insulation" refers to a means of at least one attenuation by an element disposed in series between a vibration source, which is an item of vibration equipment, and an isolated support, which is a support structure. .

The blocking device may also in some cases be a parasitically opposed to the one described above and may include a dynamic load such as a significant amount of temporary vibration and shock delivered to the item of equipment that is applied to the support structure and is susceptible to dynamic load through the blocking device Other functions to attenuate must be implemented.

To facilitate a better understanding of the present invention, the latter is more specifically described below with respect to certain applications related to the field of space exploration, the invention being useful to the applicant.

It is well known that certain actuators widely used for attitude control of satellites comprise one or more rotary elements, the balance of which is in fact imperfect at all times and produces vibrations transmitted through the satellite structure. Examples include reaction wheels, momentum wheels, gyrodines (in other words, gyroscopic actuators or CMGs), energy storage wheels, and the like.

Other items of satellite-based devices, such as compressor-based coolers, for example, can also generate such vibrations.

The vibrations produced by these items of equipment are transmitted to the payload of the satellite, for example in the case of an optical observing apparatus which is particularly sensitive to the movement of the line of sight which is detrimental to the quality of the image obtained, The performance of the payload of the satellite may be impaired.

In order to eliminate this deleterious effect, according to the prior art, a disturbance item of the equipment or a set of disturbance items of the equipment is mounted on the interrupting device consisting of an interface for mounting an item of equipment or a set of items of equipment to the supporting structure. In addition to this mounting function, the blocking device must damp the transmission of vibrations produced by at least one item of equipment in accordance with a certain frequency template that is dependent on the application. If the at least one item of equipment is a torque-receiving or force-acting actuator, the interrupting device must also deliver effective torque or force generated by this item of equipment in accordance with a frequency template of transmission rate also specified by the user. In addition, it is also desirable if the blocking device attenuates a very high dynamic load applied to the support structure during the firing phase of the satellite if necessary, which is several orders of magnitude less than the dynamic load at the time of oscillation-firing of at least one item of the device It is thought to be in contrast to the blocking function.

The subject matter of the present invention is to address at least one of the above-described problems of the prior art, which are similar to those described above, and in particular to at least one of the vibration generating equipments which are more suitable for various practical requirements than the known device according to WO 2007/077350 Of the item of the present invention.

The blocking device according to the invention is thus

- During performance tests and requirements tests conducted on the ground, specifically before satellite launch,

- during the launch of a satellite, in particular in an impacting environment that causes extreme vibration, noise and shock, and

- when the satellite is in orbit, the ability to block very small vibrations must be achieved at the expected level

.

Finally, the shielding device according to the invention must also sometimes maintain a certain stability with respect to the alignment of the item (s) of the vibration equipment with respect to the support structure over time.

The numerical values below correspond to the typical operating range of a particular embodiment of the apparatus of the present invention when applied to interrupting an actuator such as a satellite-based reaction wheel or a gyroscope.

- the weight of the items of the vibration excluded equipment: usually 1 kg to 30 kg,

Destructive forces and torques generated by the vibrating equipment: 1 N to 100 N for the frequency range of 10 Hz to 1000 Hz,

- Decay rate required for vibration and impact: 3 to 50 (typically attenuation of the slope -2 from the frequency domain to the log scale) in the range of 10 Hz to 1000 Hz,

- the factor of overstretch of the blocking device: less than 2,

- the required transmission rate: 1 ± 5% in the 0 to 10 Hz range,

- Alignment stability over time: usually up to 0.05 °,

- Firing environment: typically 1000 g (g is the Earth's gravitational acceleration) in the range of 20 to 100 g in the range of 10 to 100 Hz (vibration), in the range of 100 to 1000 Hz (impact).

In this regard, it should be noted that in the specification, the device proposed by the present invention and presented below may also be used to block a set of items of equipment, not a single item of equipment, At least one is destructive because of its vibrations, all of which are mounted on one and the same equipment holding table. The blocking device according to the invention can also be used as an interface and can be used to block some of the satellites, for example a service module, from another part of the satellite, for example a payload. In these two cases, the numerical values given as labels are not necessarily applicable.

With the applicant's name WO 2007/077350 there is known a multi-axial blocking device for blocking at least one item of vibration generating equipment mounted on a support structure, said multi- Typically four, barrier modules arranged on the periphery of the support of the vibrating machine, each blocking module comprising two rigid parts, one rigid part called the outer part of these rigid parts, And the other rigid portion called the medial portion is adapted to be attached to the item of vibratory equipment or to the support of the vibratory machine, the medial portion and the lateral portion being connected to each other by at least one elastomeric barrier pad, When subjected to compressive or shear forces, the deformation of at least one of its axes, The amplitude generated by the item damps the transmission of small vibrations, and each blocking module also includes a lateral (or radial) flexible joint and a longitudinal flexible joint that operate in the opposite direction, The sexted joint is mounted on only one of the inner side and the outer side and has a free end facing the other of the inner side and the outer side without coming into contact with other part of the inner side part and the outer side part when resting.

In order to clearly define the terminology used herein, the reader should be able to determine the orientation of the orientation module in accordance with the directions of the longitudinal direction Z, "radial direction Y ", and" tangential direction X " And FIGS. 6 to 8. These directions (X, Y, Z) respectively indicate the next direction.

- in the case of the longitudinal direction Z: on the axis (-ZZ), which is called the longitudinal direction of the item of vibration equipment, because it is almost perpendicular to the support and /

- in the radial direction Y: on the axis (-YY), which is perpendicular to the longitudinal direction (Z) and which passes through the geometrical center or the center of symmetry of the item of the object to be intercepted,

- For tangential direction X: On the axis (-XX), which is perpendicular to the two directions (Z and Y), called the tangential direction.

Each of the flexible joints of the barrier module comprises at least one elastomeric element which is capable of flexing the flexible joint while the flexible joint is in operation while the barrier pad (s) are deformed to a sufficient size at the operative position of the flexible joint The elastomeric element of the flexible joint is brought into contact with the other rigid portion facing the elastomeric element of the flexible joint to be compressed.

However, the embodiment of this type of elastomeric circuit breaker according to WO 2007/077350 has several limitations.

On the other hand, the stiffness in the twisting of the entire interrupting device (i.e., centered about the longitudinal axis Z) is only in the longitudinal direction Z and / or when the joint is inactive, i.e. during the nominal operating mode of the interrupting device Depends on the shear strength of the blocking pad disposed in the radial direction (Y). The shear strength of these pads is usually much weaker than the stiffness of the pad in tension / compression, and in some cases is insufficient to withstand the effective stress that must be transmitted by items of equipment that are twisted in the longitudinal direction (Z).

Another limitation arises from the fact that, in the configuration according to the prior art, the torsional mode is not well separated in frequency for the tilting mode (in the radial direction Y and the tangential direction X).

The subject matter of the present invention is to address at least one of the above-described problems of the prior art, which are similar to those described above, and in particular to at least one of the vibration generating equipments which are more suitable for various practical requirements than the known device according to WO 2007/077350 Of the item of the present invention.

Accordingly, it is an object of the present invention to provide a simple solution to the known limitations of the prior art.

To overcome this limitation, the present invention proposes an apparatus comprising at least three barrier modules arranged on the periphery of the item of vibration equipment or the support of the vibration equipment, each barrier module comprising at least two rigid parts And at least one other rigid portion, referred to as the medial portion of these rigid portions, is configured to be attached to the item of vibration equipment or to the support of the vibration equipment, and at least one rigid portion One medial side and at least one lateral side are connected to each other by at least one elastomeric intercept pad which, by their deformation, attenuates the transmission of low amplitude vibrations produced by said item of equipment, Mounted on at least one medial portion or at least one lateral portion Each of the flexible joints having a free end that faces each of the other outer or medial sides without contacting the other outer or medial side at rest, each of the at least two flexible joints Wherein the two joints of the longitudinal flexible joint act in both directions on the longitudinal axis and the device is operable in two directions in which each intercepting module operates in a bidirectional direction on the tangential axis, ≪ / RTI > tangential flexible connections. Thus, it is not necessary that each module comprises a flexible joint on the radial axis as required in WO 2007/0077350.

As in WO 2007/077350, it is advantageous that each of the flexible joints of the shut-off module comprises at least one elastomeric element in contact with another rigid portion facing the flexible joint in the operative position of the corresponding flexible joint.

Thus, in a particular embodiment of the flexible joint, the elastomeric element of the at least one flexible joint in the at least one blocking module is configured such that the elastomeric element in the at least one interlocking module is free from resting against the other lateral or medial side Wherein the free end includes a portion of the elastomeric element facing the elastomeric element and comprising the metal boss of the other outer or medial portion.

However, in another specific embodiment of the flexible joint, the latter comprises, on at least one module, a rigid portion made of a metal boss of a module portion supporting the joint, the metal boss supporting the elastomeric element of the joint.

Advantageously, for better interruption in the tangential and longitudinal directions, at least one blocking module, but preferably at least one tangential blocking pad each of which is mounted on a substantially tangential axis, and / Or at least one longitudinal blocking pad mounted substantially on a longitudinal axis.

In addition, for good blocking in two opposite directions in longitudinal and tangential directions, at least one blocking module, but preferably a blocking module, is mounted on each side of the inner side of the module substantially symmetrically on the longitudinal axis, Preferably two identical longitudinal blocking pads and / or two tangential blocking pads, preferably identical, mounted substantially symmetrically on either side of the medial side of the module on the tangential axis.

For a balanced movement of the device, for the main motions in two opposite directions in the longitudinal and tangential directions, it is necessary to provide, on at least one blocking module, preferably on each blocking module, It is also advantageous that the longitudinally flexible modules are mounted substantially symmetrically on both sides of the medial side on the longitudinal axis and preferably two identical tangential flexible joints are mounted substantially symmetrically on both sides of the medial side on the tangential axis.

In addition, in order to simplify the structure of the device according to the invention, and to reduce the manufacturing cost of the device according to the invention, at least one blocking module, preferably all of the flexible joints of each blocking module, And the flexible joint is directed to the outer or inner rigid portion, respectively.

More advantageously, however, at least one module, preferably both the pad and the flexible joint of each module are made of a single elastomeric element.

In a first embodiment which facilitates the exchangeability of the flexible joints, in order to improve the adaptation of the device to the application, at least one module, preferably each module, comprises two outer stiffeners, One rigid portion supports both of the flexible joints and the other rigid portion is connected to the inner rigid portion of the module, i.e., one inner rigid portion, through the at least one blocking pad, and the flexible portion of the flexible joint is connected to both the flexible joint The inner surface of the outer rigid portion or the outer surface of the inner rigid portion, or the inner rigid portion, that is, one inner rigid portion.

Advantageously in this case, the outer rigid portion supporting the flexible joint is removably attached to the support structure at a radially outward position relative to the other outer rigid portion of the module.

As a result, only the outer rigid portion supporting the flexible joint is separated and the outer rigid portion can be supported by other flexible joints without separating other components, in particular other components supporting the intercept pad (s) It is possible to replace the outer rigid portion with another outer rigid portion.

In a second embodiment which also facilitates the exchangeability of the flexible joints, at least one module, preferably a first inner part on each module is attached to the item of vibration equipment or the support of the vibration equipment, and the at least one I.e. one outer side, of the module, all of the flexible joints being supported by a second inner side attached to the first inner side in a removable and positionally adjustable manner. Thus, it is sufficient to replace the flexible joints supported by the second inner and the second inner portions with another second inner portion with another flexible joint in order to improve the adaptation of the device to the application, The flexible portion of the joint is attached to the outer side, i.e., the inner surface of one outer side or the outer surface of the second inner rigid portion.

In this second embodiment, the flexible joint is advantageously provided on the radially outer end of the second inside portion, which is disposed as a radially end member that is partially mounted to be detachably radially adjustable in the first inside portion Or about its outer end, and the first inner side is connected to one, i.e., only one, outer side of the frame through the at least one pad, the first inner side and the second inner side being radially engaged. Therefore, this embodiment has a simple and economical structure for manufacture and installation.

In a third embodiment of a more economically manufactured and simpler structure, on at least one module, preferably on each module, the flexible part of the flexible joint is attached to one and the same inner side, the flexible part of the flexible joint, For example, a rectangular or circular cross-section, attached to the radially outer end or about the radially outer end, each having a shape of the inner portion which is generally parallelepiped or cylindrical, and at least one And a single elastomeric element that engages the frame of the mating shape of the outer side.

However, according to another variant, on at least one module, preferably on each module, the flexible parts of the flexible joint are attached to one and the same outer side, and the flexible part of the flexible joint has, for example, a rectangular or cylindrical cross- Which is mounted on the radial end member of the inner portion which is attached to the inner side of the frame of the outer side and protrudes radially outwardly and engages with the frame of the outer side through its outer surface, Sleeve-shaped single elastomeric element.

In this alternative variant, the rigid joint may advantageously be interchangeable, have a substantially parallelepipedic or cylindrical shape, and easily adjust a small functional interstice between the rest position and the operating position of the flexible joint To the radially outer end of the radial end member of the medial side in a detachable and adjustable manner so as to allow the radially outer end member of the medial side to engage.

As in WO 2007/077350, each of the shut-off modules of the device is such that its radial axis is inclined at one and the same angle with respect to the mounting surface of the item of vibration equipment on the equipment holding table to which the inner part of the shut- It is possible. In this case, the term "longitudinal direction " does not denote that it is anymore perpendicular to the installation surface of the item of equipment, and it indicates the direction inclined with respect to this installation surface and having the main component perpendicular to the installation surface, The definition of the direction and tangential direction remains unchanged.

In addition, in order to simplify the configuration of the device while facilitating balancing stress and torque, it is desirable that the various blocking modules of the device of the present invention are substantially identical to each other and / or the device is preferably placed at the vertex of an equilateral triangle It is advantageous to include or consist of three identical modules.

However, in order to facilitate the design of the assembly by the symmetry effect, the device also preferably comprises four identical modules arranged at the vertices of the square and preferably arranged symmetrically about the diagonal of the square, ≪ / RTI >

Advantageously, it is also advantageous in terms of cross-section, height, viscoelasticity, angle between the middle surface of the longitudinal pad and the inner rigid portion (s), and angle between the radial axis of the blocking module and the mounting surface of the item of equipment The characteristic of the pad is that the frequency function of the transmission rate of the stress on the force and torque on the three axes for a small amount of movement below or at the operating position of the flexible joint corresponds to a particular template, For example, vibrations of low amplitude in the force and torque transmitted to the support structure of the satellite by the item of equipment are guaranteed to be precisely filtered over a range over a given frequency, and the effective force and torque generated by the item of equipment To ensure that it is delivered without causing harmful damage below the frequency.

Likewise, the characteristics of the flexible joint in terms of the cross-section and height of the elastomer, the modulus of elasticity of the elastomer, and the dimension of the space between the opposing portions of the flexible joint are such that when a large load is applied to the device, Avoiding too much deformation and thus preventing any damage or undesirable irreversible phenomena while at the same time reducing the frequency of the stress transfer rate on the three axes of force and torque over the entire operating range provided for the device The function corresponds to a particular template, and therefore the vibration and shock at which the amplitude in the force and torque transmitted to the item of equipment by the satellite's support structure is chosen to be precisely filtered.

The present invention also relates to an apparatus and method for an aeronautical space, wherein the item of equipment is an item of aerospace equipment mounted on a satellite, the item of equipment comprising a reaction wheel, kinetic wheel, momentum wheel, energy storage wheel, gyrodyne, And at least one vibration generating and rotating portion such as at least one of a crossover actuator, a scorecard actuator, or a CMG, the items of which include a multi-axial blocking device To the use of a multi-axial blocking device as previously described.

The use of a multi-axial blocking device may also include at least one cyclic element that generates vibrations over time, such as, for example, a compressor used to generate a cooler, said item of aerospace equipment mounted on a satellite And at least one portion that is actuated to translate by a predetermined movement, wherein the items of the equipment provided with the interrupting device are adapted to withstand dynamic and static loads such as vibrations or shocks occurring at the launch of the satellite .

Other features and advantages of the present invention will be apparent from the description given below, by way of non-limiting description, with reference to the exemplary embodiments described with reference to the accompanying drawings.

According to the present invention, it is possible to block at least one item of equipment mounted on a satellite and generate vibration to prevent transmission of vibration or shock therefrom, attenuate a very high dynamic load applied to the support structure during the launching phase of the satellite A multi-axial blocking device is provided.

1 is a schematic view of an example of a multi-axial blocking device according to the invention in which the upper pad and the flexible joint of each of the four identical blocking modules of the device are entirely divided into a partial planar and partial section Perpendicular to the longitudinal axis (Z)
Figures 2a and 2b are schematic views of cross sections on IIa-IIA and IIb-IIb, respectively, of Figure 1, showing two outer sides of a module with an elastomeric pad and an elastomeric flexible joint, respectively, of the module,
Figure 3 is a variation of the module illustrating the details of Figure 3, III,
Fig. 4 is a schematic view of a longitudinal section through the center of two opposite blocking devices of two variants of the blocking device according to Fig. 1, each variant showing one of the halves of Fig. 1,
5 is a partial schematic view of a longitudinal and radial cross section of a variant of the interrupting device in which the radial axis of the blocking module is inclined with respect to the mounting surface of the item of vibration equipment or the suspension of items of the vibration equipment,
Figure 6 is a partial schematic view of a longitudinal and radial cross section of another variant of the intercepting module in which all of the flexible joints of the interrupting device are mounted on the inner rigid part of the module and have a single An elastomeric element,
FIG. 7 is a partial schematic view of the cross-section in the direction of engagement on V II-V II in FIG. 6,
Figure 8 is a partial schematic view of another variant of the module in a tangential section in a flexible joint in a single element which is an elastomeric sleeve that faces this frame and surrounds a portion of the inner rigid portion of the module within the frame of the outer rigid portion of the module Lt;
Figure 9 is a view similar to Figure 8, with respect to yet another variant of the module, in which the flexible joint of the module has an elasticity which is mounted in the frame of the outer rigid part of the module to face a part of the inner rigid part of the module, It is a single element that is a polymer sleeve,
10 is a perspective view of another example of the blocking module in which the outer rigid portion is integral,
Figure 11 is an exploded perspective view of the module of Figure 10,
Figures 12 and 13 are two views in each of the longitudinal and radial sections of the modules of Figures 10 and 11,
Figure 14 is another perspective view of the modules of Figures 10-13,
15 is a view of the modules of Figs. 10-14 in cross section XV-XV of Fig. 14. Fig.

The multi-axial blocking device 1, which is shown entirely in Figure 1, comprises an item of vibrating equipment 2 on the one hand or a set of items of equipment on which at least one is vibrating - Which is shown schematically as a generally cylindrical outer shape of a circular cross section with a longitudinal axis defined by the direction Z, mounted on the equipment holding table 3 suspended by four blocking modules 4, and on the other hand Such as the inner structure or the platform of the service module of the satellite, which support the item of design, manufacture and equipment and the item of equipment The device 1 is attached by a module 4 which is simple to install. These modules 4 are arranged such that two pairs of modules 4 are arranged diagonally opposite the longitudinal axis Z for the table 3 and the items of equipment 2 and the four modules 4 are arranged in a square (Indicated by dotted lines) and are distributed uniformly in the circumferential direction around the table 3 so as to be positioned symmetrically with respect to the two diagonals D1 and D2 of the square, the diagonals of the square being orthogonal to each other Corresponds to the radial direction (Y) of the two opposing modules of each of the pair of modules of each of the two pairs of modules (4).

As a variant, the multi-axial blocking device may comprise only three identical blocking modules 4 arranged uniformly around the table, preferably placed at the vertices of an equilateral triangle centered on the Z axis and surrounding the table . However, the embodiment according to FIG. 1 with four modules 4 offers the advantage of better symmetry. Furthermore, the construction of the shielding device 1 is simplified because the structure of each shielding module 4 inherent in the present invention and the modular nature of the shielding device 1 make it possible to obtain a variety of forces and torques Since the degrees of freedom are decoupled and the dimensions are easier to achieve, which represents a significant advantage of the present invention over the prior art.

Each of the modules 4 (schematically represented in Figures 2a, 2b, 4 and 5), which are independent of each other in their attachment to the support structure 5, are arranged radially outward from the table 3 in the form of a circular disc (6) extending radially toward the protruding attachment flange (3a), the radially inner end (7) of the inner rigid portion, the radius of which passes through the center and is perpendicular to the longitudinal direction On the directional axis -YY) is constituted as an attaching sheet which is removable by a rigid but preferably, for example, bolt coupling element 7a. The inner rigid portion 6 also has a radially outer end 8 connected to the first outer rigid portion 9a of the module 4 by four elastomeric barrier pads 12.

This outer rigid portion 9a is fixed to two rectangular side sheets 11a which are attached to the supporting structure 5 by screws 13 so as to extend above the supporting structure 5 in parallel with the tangential direction X The thickness of the frame 10a in the radial direction Y is greater than its width in the tangential direction X and its height in the longitudinal direction Z, . The frame 10a has two opposing flat surfaces (the horizontal surface in Fig. 2A) perpendicular to the longitudinal direction Z and two other opposed flat surfaces (the vertical surface in Fig. 2A) perpendicular to the tangential direction X The cross section of this central opening in the XZ plane is defined by a radially outer end 8 in the form of a parallelepipedic shape which radially crosses the frame 10a, Sectional cross-section of the first embodiment.

The four pads 12 are identical to one another in this example, one of each of the two opposed faces being attached to the flat side of the radially outer end 8 and the other of the two opposite faces being attached to the frame 10a Parallelepiped elastomeric bulks that are attached to a flat inner surface, such attachment being by curing, bonding, or any other equivalent means by molding of an in-situ elastomer.

These four pads 12 are thus referred to as longitudinal pads 12a because they act on tension / compression forces due to any stress or stress component in the force and / or torque parallel to the longitudinal direction Z Called a tangential pad 12b because it acts on a pair of opposed pads and a tension / compression force due to any stress or stress component in the force and / or torque parallel to the tangential direction X, Pad.

The two longitudinal pads 12a act in both directions in the longitudinal direction Z because one pad of these longitudinal pads acts against the compressive force when the other pad acts against the tension, (The tangential pads 12b are simultaneously acting on the shearing action in the same direction on the Z axis), these two pads 12a are arranged on the radially outer end of the inner rigid portion 6 8 in a substantially symmetrical manner.

Likewise, the two tangential pads 12b act in both directions in the tangential direction X because one of the tangential pads is opposite to the compressive force when the other one acts against the tension The two pads 12b are also tangential to the radial direction of the inner rigid portion 6 on the tangential axis -XX, Are mounted substantially symmetrically on both sides of the outer end (8).

Each module 4 also includes a frame 10b and two sheets 11b which are identical to the structure of the first outer rigid portion 9a, i.e., the frame 10a and the two sheets 11a, respectively, And a second outer rigid portion 9b attached to the support structure 5 by a screw 13 at a radially outward position of the inner rigid portion 9a adjacent to the first inner rigid portion 9a in parallel. The second outside rigid portion 9b is formed of a parallelepipedal shape which is identical to each other as shown in Fig. 2B in this example, and which is attached to a flat surface or one of the four inner flat surfaces of the frame 9b, Of four elastomeric blocks of elastomeric material. The thickness of the flexible joint 14 is such that each flexible joint 14 has a flat surface on the opposite side of its base and the flat surface is defined by the flattened surface of each of the radially outer ends 8 of the rigid medial portion 6 And this free end of each flexible joint 14 does not come into contact with the opposing face on the radial end 8 of the rigid medial portion 6 during resting, (9b).

These four flexible joints therefore have a pair of opposing flexible joints 14a which are called longitudinal joints 14a because they act on the deformation axis of the longitudinal pads 12a with respect to the tension / Called tangential joint portion 14b because it acts on the deformation axis of the tangential pad 12b with respect to the tension / compressive force, that is, in the tangential direction X. [

Thus, the longitudinally joined portion 14a is formed so that one joint portion (the joint portion 14a in the upper position in FIG. 2B) acts in the -ZZ direction in the vertical axis and the other joint portion 14a) is in the opposite direction of the longitudinal direction, the supporting structure 5 and the support structure 5 are brought into contact with the radially outer end 8 of the rigid medial portion by the upper or lower longitudinal flexible joint 14a Limits the magnitude of the longitudinal movement of the radial end 8 of the rigid medial portion 6 with the table 3 and the items of the vibration device 2 for the second rigid outer rigid portion 9b. Likewise, the longitudinally joined portion 14b is formed so that one joint portion (the joint portion 14b at the right side position in FIG. 2B) acts in the tangential axis -XX direction and the other joint portion The contact between the supporting structure 5 and the lower longitudinal flexible joint 14b by the contact of the radially outer end 8 of the rigid medial portion with the upper or lower longitudinal flexible joint 14b while acting in the direction opposite to the tangential axial direction Limits the magnitude of the tangential movement of the radial end 8 of the rigid medial portion 6 with the table 3 and the item of the vibration device 2 for the second outer rigid portion 9b secured to the support structure, do.

As an alternative, the elastomeric portion 14 of each flexible joint 14a, 14b may have greater stiffness than the elastomeric 12 of the pad 12a or 12b and / 14a, 14b may have a rigid skeleton that is installed or included in outer rigid portion 9b that supports one abutment and at least one elastomeric layer that covers the rigid skeleton, if desired.

As an alternative to the other drawings (Figs. 4, 5, etc.) other than Figs. 1, 2 and 3, the radius of the rigid inner side portion 6, which faces the flexible joint portion 14 in order to reduce the clearance of the flexible joint portion A possible boss on the direction end 8 can be introduced so that the deformation of the blocking pad does not become too large when there is a large relative movement between the inner rigid portion and the outer rigid portion of the blocking module.

During normal operation of the items of the satellite equipment 2 in the orbit the blocking pads 12a and 12b are moved in the radial direction of the inner rigid portion 6 facing the flexible joints 14a and 14b While attenuating the transmission of low amplitude vibrations produced by the items of the vibration device 2 to the support structure 5 through deformation of the blocking pads without contact of the outer end 8, The resulting high amplitude vibrations and vibrations supported by the support structure 5, for example, can be transmitted by movement of one or other of the longitudinal flexible joint 14a and the tangential flexible joint 14b to an operative position Wherein the elastomeric block of the flexible joint is in contact with the opposing face of the radially outer end 8 of the inner rigid portion 6. The compression of the elastomeric element of this flexible joint at one and / or the other of the flexible joints 14a, 14b causes the compression of the elastomeric elements of the equipment 2 on the table 3 in the support structure, It is possible to attenuate the impact of large amplitude and the transmission of vibration to the item. The contact of the elastomeric element of the flexible joint 14a or of the flexible joint with the face of the radially outer end 8 of the inner rigid portion 6 facing the flexible joint in the operating position is achieved only by the This deformation is greater than the maximum deformation during compression which is encountered during normal operation of the item of satellite equipment 2 in the orbit.

The device 1 thus produced ensures multi-axis interception, since the device comprises at least three, preferably four, modules thus constructed. Concretely, the vertical movement of the item of the vibration device 2 with respect to the support structure 5 or the movement of this item (on the Z-axis) together with the inner rigid part 6 and the table 3 of the module 4, The longitudinal components are attenuated and if possible by deformation of the longitudinal pads 12a of all the modules 4 and during deformation of the tangential pads 12b at the front end and if necessary all of the modules 4 ) To the operative position of the flexible joint 14a.

Movement of the item of the vibration device 2 and the table 3 at the time of twisting together with the inner rigid part 6 of the module 4 centered on the longitudinal direction Z is basically the same as the tangential direction of all the modules 4 Is attenuated by the deformation during tension-compression of the pad 12b and the deformation during the shearing of the longitudinal pad 12a and if possible this torsional movement is achieved by one of the tangential flexible joints 14b of all the modules 4 Is moved to the operating position.

Any movement of the item 2 of the equipment 2 and of the table 3 in any radial direction with respect to the longitudinal direction Z is divided into two components each extending on one of the two diagonals D1 and D2, do. The radially displaced stress on D1 therefore acts as a shear force on the four pads 12 of each of the two modules 4 centered on Dl but is basically divided into two modules 4 centered on the diagonal D2 ) Is reduced by the action of tension-compression of each of the two tangential pads 12b, and one of the tug-direction flexible joints 14b of each of the modules is moved to the working position < RTI ID = Lt; / RTI >

Likewise, the items of equipment 2 and the components on D2 of the radial movement of table 3 act as shear forces on the pads 12 of the two modules 4 centered on D2, Compression of the tangential pads 12b of the two modules 4 centered on one of the tangential flexible joints 14b of each module and one of the tangential flexible joints 14b of each module moves to the operating position To limit the amplitude of radial movement on D2 caused by strong vibration or impact.

Movement and tilting stresses of the items of the equipment 2 and the table 3 about an arbitrary direction on the installation surface of the item of the equipment 2 on the table 3 are centered on diagonal lines D1 and D2 And the tilting about D1 is basically attenuated by the action of tension-compression of the longitudinal pads 12a of the two modules 4 centered on D2, The tilting around D2 is basically attenuated by the action of tension-compression of the longitudinal pads 12a of the two modules 4 centered on D1. During tilting around D1, this tilting movement is limited in amplitude by movement to the operating position of one of the longitudinal flexible joints 14a of the two modules 4 centered on D2, and conversely D2 The centered tilting is limited by the movement of one of the longitudinal flexible joints 14a of each of the two modules 4 centered on D1 to the operating position.

It should be appreciated that the device 1 thus fabricated constitutes a multi-axial blocking device which permits resistance to firing and allows blocking of all degrees of freedom.

As mentioned in WO 2007/077350, the usefulness of this type of device, namely the following three main functions, is achieved by the combined action of all the blocking modules. The blocking of very low amplitude vibrations between the table 3 and the support structure 5 by a limited number of blocking pads, the creation of items of equipment or items of equipment 2 by the same blocking pads Delivery of certain effective torque, and attenuation of high amplitude shock and vibration during the launch phase.

The utility of this device for the prior art, including WO 2007/077350, is that the transfer of the available effective torque on the X-, Y- or Z-axis produced by the item of equipment 2 is more efficient for all Is easier because of the greater stiffness of the working pad. Figure 1 makes it possible to easily visualize this action when a torque about the Z axis is generated.

In addition, the particular arrangement of flexible joints according to the invention as shown in Fig. 1 prevents the translation and rotation on all axes by the combined action of the joints of all four intercepting modules, The single blocking module can never withstand the strong relative movement between the table 3 and the support structure 5. [ It is this combined action of at least three, preferably four, modules that makes it possible to significantly simplify the structure of each module compared to the prior art. Figure 1 very well illustrates this combined action of relative movement in translational motion on the mounting surface of the item of equipment and relative movement in rotation about the longitudinal axis.

The available functional space between the longitudinal flexible joint 14a and the tangential joint 14b in the rest position and the opposing face of the radially outer end 8 of the inner rigid portion 6 is not adjusted for the use of the apparatus , The screw 13 for fastening the seat 11b of the second outer rigid portion 9b of the one or more modules 4 of the device is easily loosened to remove the second outer rigid portion 9b and the expected Is replaced by another rigid portion of similar construction provided with longitudinal flexible joints 14a and / or tangential joints 14b having different dimensions or stiffness to form a functional space adapted to the application.

Fig. 3 shows a variant of the module 4 shown in detail III of Fig. In this variant, the module 4 comprises an inner rigid portion 6, which is still formed as described above, and two outer rigid portions 9a, 9b also formed as described above and shown in Figures 2a and 2b These two outer stiffeners, however, have two longitudinally flexible joints 14a and two tangentially-flexible joints 14b, two of which support the four blocks 52 of the elastomeric polymer 14, The outer rigid portion 9b is connected to the radially outer end 8 of the inner rigid portion 6 by four pads 12 forming two longitudinal pads 12a and two tangential pads 12b 1 in that it is disposed radially inward of the first outer rigid portion 9a. In this variant, the replacement of the second outer rigid portion 9b for replacing the flexible joint 14 with another more suitable joint can be carried out only by complete removal of the module 4, 6 must be removed by unbolting the corresponding flange 3a of the table 3 and the two outer rigid portions 9a and 9b of the module must be removed from the support structure 5 by unscrewing the screw 13. [ Lt; / RTI >

In these embodiments, the two longitudinal pads 12a and / or the tangential pads 12b of each module 4 are exactly identical to one another in geometric shape and rigidity and, if possible, It is advantageous to be installed to balance.

Fig. 4 shows two variants in which four flexible joints 14 are supported by an inner rigid portion (each half corresponds to one variant).

In the variant of the left half of figure 4, there is also a single inner rigid part 6 in each module 4, which extends in the radial direction and the radially inner end 7 of the inner rigid part Is fastened to a flange (3a) for attachment of a table (3) which supports the item of equipment (2) by a bolt coupling element (7a) schematically indicated by its fastening axis. In this variant, the inner rigid portion 6 is formed of a metal member comprising a radially outer portion 8 and a radially inner portion 7, which are in fact composed of a single member, for example two parallelepiped portions 8a and 8b. The inner rigid portion 6 is formed by four elastomeric interception pads 12 forming two longitudinal pads 12a and two tangential pads 12 (not visible in this half) (10), each of which is attached to one of the four sides of the parallelepiped portion (8a) via one of the two opposing faces, and the other of the opposing faces is connected to the opposite face Each of the four elastomeric flexible joints 14 forming two longitudinal junctions 14a and two tangential junctions (not visible in this half) (8b) through one opposing face forming a base in the face of the frame (10) of the outer rigid portion (9), and the opposing face at the base of each flexible joint Without contacting each of the four inner surfaces, Reaching for each, so that the modification of the functional area is formed between opposed surfaces of the outer rigid portion 9 and each of the flexible joint in accordance with.

It should be understood that the module 4 of this variant operates in the same way as the module 4 of the embodiment of Figures 1 to 3 when combined with at least two other modules for forming the multi- do.

Figure 4 very well illustrates the combined action of the blocking module with respect to the relative movement in translational motion on the longitudinal axis (Z) of the item of equipment and the relative rotational tilting movement of the item of equipment (2). In all cases, it can clearly be seen that the barrier pad will work primarily in tension / compression, which is a desirable element in the application.

4 is different from the modification of the left half only in that the four flexible joints 14 are mounted on the second inner rigid portion 15 and the second inner rigid portion 15 is different from the first half Is mounted to the radially outer end (8) of the first inner rigid portion (6) in a removable, radially adjustable manner, and the radially inner end portion (7) of the first inner rigid portion Is detachably attached to a flange (3a) for connecting the table (3) by a coupling element (7a). In this variant, a single outer stiffening portion 9 is made as in the variant described above, i.e. the single outer stiffening portion is formed by a single tangential stiffening portion, Wherein the radially outer end 8 of the first inside stiffening portion 6 and the second inside stiffening portion 15 are radially engaged within the frame 10,

In this variation, the radially outer end 8 of the first inner rigid portion 6 is tubular and is configured to receive the radially inner portion 15a of the second inner rigid portion 15 that engages the tubular portion 8 While the radially outer portion 15b of the parallelepiped shape having a larger lateral cross section of the first inside stiffening portion 15 has two joints on the two pairs of opposing surfaces Supporting the four flexible joints 14 such that they are symmetrical and these flexible joints face these inner surfaces without contacting the four inner flat surfaces of the frame 10 and the same inner flat surfaces of the frame have four Are connected to the four outer flat faces of the radially outer end 8 of the parallel hexahedron of the first inner rigid portion 6 through the elastomeric intercept pad 12. The attachment of the second inner rigid portion 15 to the first inner rigid portion 6 is performed by radially crossing the second inner rigid portion 15 and the radially outer side of the first inner rigid portion 6 And a radial screw 16 screwed to a tapped bore at the bottom of the end 8.

Thus, to modify the flexible joint 14 and adjust the stiffness (s) and / or the functional space (s) with the frame 10, the screw 16 is unscrewed and the second inner stiffening portion 15 may be changed to another one provided with a more flexible joint 14 suitable for the application of the apparatus.

5 corresponds to a modified example of the left half of Fig. 4, in which the single inner rigid portion 6 has a radially outer end portion 8 having two parallel hexahedral portions 8a, 8b, The radially inward portion 7 is curved and the first of the two parallelepiped portions is connected to the frame 10 of the single outer rigid portion 9 through the pad 12 and the second portion is connected to the flexible joint 14). Thus, the radial axis -YY of each blocking module 4 is formed such that the inner rigid portion, such as 6 , is inserted through its radially inward portion 7 into the bolt connection 7a To an installation surface of the item of vibration equipment 2 on the table 3 at one and the same angle .alpha. The radially inner side portion 7 of the single inner rigid portion 6 is fixed to the table 3 parallel to the mounting surface so as to enable detachable attachment of the single outer rigid portion 9 to the support structure 5 by screwing, While the attachment sheet of the outer rigid portion 9 has a plane inclined at the same angle to which the rectangular frame 10 of the outer rigid portion 9 is attached.

In each of the three variants of Figures 4 and 5 the two longitudinal flexible joints 14a are substantially identical and are fixed to the radially outer end 8b of the single internal rigid portion 6 or to the table 3 Mounted on both sides of the radially outer side portion 15b of the second inside stiffening portion 15 which is detachable from the first inside stiffening portion 6 and installed in a radially adjustable manner, The two tangential flexible joints which are not visible in these figures, such as 14b , are substantially identical, and are substantially symmetrical on the tangential axis, so that the same radially outer end portion 8b of the single inner rigid portion 6, 1 are provided on both sides of the same radially outer side portion 15b of the second inside rigid portion 15 provided on the first inside rigid portion 6. [

This principle of using a flexed inner stiffness part has the advantage of improving the blocking properties in some cases, which can be applied to all variations of the device as described herein.

Figures 6 and 7 show a partially variant embodiment of the embodiment according to the left half of figure 4 in which the figure shows a rectangular frame 10 of a single outer rigid part 9 and a rectangular frame 10 of a single inner rigid part 6 The radially outer end 8, and the elastomeric barrier pad 12 and the elastomeric flexible joint.

The radially outer end portion 8 of the rigid medial portion 6 is also symmetrical on both sides of the radially outer end 8 on the longitudinal axis -ZZ, as already described with respect to the left half of Figure 4 and Figure 5, And two tangential blocking pads 12b arranged symmetrically on both sides of the radially outer edge 80 on the tangential axis -XX And is connected to the frame 10 of the outer rigid portion 9 by the elastomeric block 12. However, the variants of Figures 6 and 7 differ from the variant described above in that all of the flexible joints of each module 4 are made up of a single elastomeric element 24 having an approximate outer shape of a rectangular parallelepiped The elastomeric element is pressed against the radially outer end surface of the radially outer end portion 8 of the inner rigid portion 6 by vulcanization or bonding by molding and thus by the radial direction of the stop pads 12a and 12b ZZ and a radial axis YY perpendicular to the longitudinal axis -YZ so that the opposing surfaces of the blocking pads parallel to the longitudinal axis -ZZ form two tangential flexible joints 12b. The two sides of the elastomeric element form two longitudinal flexible joints 24a.

As in the example above, each flexible joint 24a or 24b is separated from each of the four flat inner opposing faces of the frame 10 of the outer rigid portion 9 by a functional space at rest or at a nominal position.

Figure 8 shows a cross-sectional or tangential cross-section of a variant according to Figures 6 and 7 wherein a single elastomeric element 34 forming both the flexible joints of the corresponding module in this figure has a radial direction of the inner rigid portion 6 Is formed in the form of an elastomeric sleeve of rectangular cross section attached around the outer end 8, and the radially outer end 8 has a rectangular parallelepipedic outer shape, for example a square cross section. The inner rigid portion 6 provided with the elastomeric sleeve 34 on the radially outer end 8 is thus provided with two longitudinal flexible joints 34a and two tangential flexible joints 34b, These joints are thinner than the joints of the embodiment of Fig. 7, thereby providing a larger nominal functional space on the inner facing surface of the frame 10 of the outer rigid portion 9. [

Figure 9 shows a single elastomeric element 44 forming a flexible abutment mode of the module 4 in the form of a sleeve having a rectangular transverse cross-section, with four flat outer surfaces of this elastomeric element, In this variant, two longitudinal flexible joints 44a formed by two pairs of opposing surfaces of the sleeve 44 and two tangential inner surfaces 44b of the two tangential flexible joints 44a, Wherein the directional flexible joint 44b is supported by the outer rigid portion 9 and the radially outer end 8 of the single inner member 6 engages the frame 10 of the outer rigid portion . In this example, since the thickness of the elastomer sleeve 44 is substantially the same as the thickness of the elastomer sleeve 34 in Fig. 8, the radial direction of the frame 10 of the outer rigid portion 9 and the inner rigid portion 6 Assuming that the outer end has the same dimension, the functional space between the radially outer end 8 of the inner rigid portion 6 and the flexible joint of the outer rigid portion 9 is substantially equal to the value in the example of Fig. 8 .

It is also preferable that the radially outer end 8 of the inner rigid portion 6 be a rectangular or square cross section larger than both sides of a similar cross section of the inner rigid portion 6 in a portion adjacent to the radially inward portion for attaching both sides to the table 3 The radially outer end 8 has a boss facing the free ends of the flexible joints 44a and 44b facing the boss without contacting these flexible joints at rest, And the boss of the rigid joint is in a functional space corresponding to the maximum movement distance of the boss relative to the flexible joints 44a, 44b to pass from the rest position, i.e., from the nominal position to the operative position of the abutment .

In this example, as in the previous example, it is preferable that the inner rigid portion (s) such as 6 and the outer rigid portion (s) such as 9 are made of, for example, steel or titanium or a titanium alloy.

Moreover, it can be noted that the shape of the inner rigid portion and the outer rigid portion may be substantially cylindrical rather than rectangular or parallelepiped. In this case, the flexible joint may be composed of an elastomeric layer in the shape of a bond attached to either the inner rigid portion (as in Figure 8) or the outer rigid portion (as in Figure 9).

The exemplary blocking module 4 of Figures 10-15 includes a single outer rigid portion 59 that is disposed in a support structure such as 5 as in the example above and is configured to be tangentially attached, (60) formed by a single metal portion having a single lateral stiffening rib (61), the single outer stiffening portion also connected to the frame (60) via two lateral stiffening ribs (62) Extending radially outwardly of the latter over two sides of the frame 60, in which three slots for screws for attachment to the support structure are pierced.

This exemplary module 4 also includes a single inner stiffening portion 56 which has no radial flange 3a but which has an edge of the equipment holding table in the form of a circular disc, Which is configured as an arcuate seat for direct attachment of the inner rigid portion to the table, the seat 57 being pierced to receive three screws for attachment of the inner rigid portion 56 to the table, And has three housings 57a. The inner rigid portion 56 also includes a radially outer portion 58 formed as a single metal portion with a radially inner portion 57 and configured as a radial end member having a rectangular parallelepipedic outer shape and having a blind and a radial tapping bore 64 Wherein the radial tapping bore is screwed in an adjustable manner to a retaining and fastening screw 66, and on the radially outer side of the radial end member 58 there is also a rectangular parallelepiped outer shape but flat, 66 are pierced with a central orifice through which a metal rigid bond 65 is provided. The metal stiff joint 65 is thus removably and radially adjustable mounted on the inner rigid portion 56 and is therefore interchangeable.

The assembly of the blocking pad and the flexible joint consists of a single elastomeric element 51 which has the outer shape of a sleeve 54 of substantially rectangular cross section and which has four outer flat sides 59 to the four flat inner surfaces of the frame 60. The thickness of the elastomeric element is such that at its radially outward portion, which surrounds this rigid connection, the sleeve 51 does not come into contact with the rigid connection 65 during resting, and this sleeve 51 has two longitudinally opposed flexible joints 54a and two tangential 11-13 and 15), the radially inward portion of the sleeve 54 comprises four identical parallelepipedal blocks 52 that face each other in two opposing directions, Which is also thinner than the outer sleeve 54 with its rectangular cross section and which is mechanically or adhesively secured to the four flat outer sides of the radial end member 58 via its four flat inner surfaces to encompass the radial end member And the sleeve 54 is engaged with the frame 60 of the outer rigid portion 59. The inner sleeve 53 is connected to the inner sleeve 53, Thus, the four elastomeric blocks 52 connecting the inner sleeve 53 and the outer sleeve 54 together form two opposing longitudinal blocking pads 52a as shown in Figures 11-13 and 15, And two opposing tangential cut-off pads 52b, while the cross-sectional views of Figures 12 and 15 show the longitudinal pad 52a and the longitudinal flexible joint 54a on the one hand and the cross- More specifically, tangential pad 52b and tangential flexible connection 54b, respectively.

Due to the exchangeability of the rigid bond 65, between the two opposing sides of the opposing faces of the rigid bond and the two longitudinal flexible bonds 54a and the remaining two opposing faces of the rigid bond and two tangential flexibility It is understood that it is possible to adjust the functional space between the joints 54b. This interchangeability also makes it possible to adjust the thickness of this rigid bond 65 and to adjust the radial position of the rigid joint relative to the radial end member 58, It is possible to appropriately set the position.

The operation of this device is the same as the operation of the device of the prior art and similarly the fabrication of the elastomeric barrier pads and the flexible joints can be done in a variety of ways, After the surface treatment of the metal part to ensure elastomer-metal adhesion between the two parts, i.e., the inner rigid part 56 and the outer rigid part 59, and between the rigid bonding part 65 and the four pads 52, Can be achieved by molding the elastomer. Removal of such a core or cover after molding of the elastomer that adheres to the corresponding prepared surfaces of the inner rigid portion 56 and the outer rigid portion 59 by curing due to the removable attachment of this rigid bond 65, It becomes easy.

It should also be noted in this example that the edge of the rigid bond 65 is made up of a boss facing the flexible joints 54a and 54b and this boss, together with the flexible joint, Which forms a functional space that permits passage of the flexible joints from the holding position to the operating position, wherein the micro vibration is attenuated and filtered by the blocking pads 52a, 52b.

In variations of the device (not shown in FIGS. 12-15) it is desirable to use different elastomers to make pads and joints or to avoid possible interaction spaces between the pads and joints, so that the barrier pads and the flexible joints (The core may be disposed between the barrier pad and the flexible joint).

The shape (s) of the barrier pads 12, 52 and / or the flexible joints 14, 24, 34, 44, 54 can be selected without too much constraint, The shape may be a parallelepiped or cylindrical shape due to the linearity and simplicity of a small amount of movement, but a frusto-conical or pyramidal shape is also possible. Likewise, each pad and / or flexible joint may be a single member formed of an elastomer, for example, a plurality of layers of elastomers of different stiffness may be laminated, and the elastomer of the pad and the flexible joint may be the same Or may be a different elastomer.

In each of these variants, the cross section, the height, the modulus of viscoelasticity, the angle between the middle surface of the longitudinal pad 12a and the inner rigid portion (s) 6, and the radial axis of the intercepting module, ) in force and torque on the three axes of the installation characteristics of the blocking pad such as 12 in terms of the angle between the surfaces (14 and movement of) a small amount of below the operating point of the flexible joint, such as an item of Of the transmission rate corresponds to a particular template and thus vibration of low amplitude in the force and torque transmitted to the support structure 5 of the satellite by the item of the equipment 2, for example, , And to ensure that the effective force and torque generated by the item of equipment (2) are delivered without detrimentally degrading below the given frequency.

Likewise, the cross-section and height of the elastomer, the modulus of elasticity of the elastomer, and the characteristic of the flexible joint, such as 14 , in terms of the dimension of the space between the elastomeric portion of the flexible joint and the rigid portion facing the elastomeric portion at rest Such as 12 , when a large load is applied to the device is avoided, thereby avoiding any damage or undesirable irreversible phenomena, and at the same time, in the entire operating range provided for the device The frequency function of the transmittance in the force and torque on the three axes corresponds to a particular template and therefore the amplitude and the amplitude of the force and torque transmitted to the item of equipment 2 by the satellite support structure 5 are low Vibration and shock are selected to be precisely filtered.

It is very advantageous to use the same type of elastomer for the blocking pads 12, 52 and the flexible joints 14, 24, 34, 44, 54 in order to make the manufacture of the blocking module 4 easier. Points should be noted.

It is also possible to manufacture the inner rigid part of the blocking module so that the inner rigid part 6 or 56 of the blocking module 4 forms the body with the item 2 of the equipment 2 or the equipment holding table 3, Although less modular, it becomes smaller (specification of allocatable volume) and becomes more integrated.

If desired, at least some embodiments of the device of the present invention allow for various adjustments, i.e., adjustment of the functional space between the opposing portions of the inner rigid or outer rigid portion of each flexible joint and corresponding module, Depends on the rigidity of the flexible joints by the choice of the orientation and / or the structure of the elastomer (s) and / or the flexible joints, along the longitudinal or tangential direction, and even in each direction, May also vary depending on the orientation in the longitudinal and tangential directions or in these directions.

1: Multi-axial blocking device
2: Equipment
3: Equipment maintenance table
4: Blocking module
5: Support structure
6, 56; Inner rigid portion
9, 59: outer rigid portion
12, 52: Blocking pad
14, 24, 34, 44, 54: flexible joint
44, 51: single elastomeric element

Claims (24)

A multi-axial blocking device (1) mounted on a support structure (5) of a satellite for multi-axially blocking at least one item of equipment (2)
This multi-axial blocking device comprises at least three blocking modules (4) arranged on the periphery of the item (3) of the vibration device (2) or the support (3) of the vibration device, each blocking module And at least one rigid portion called the outer rigid portion 9, 9a, 9b, 59 of these rigid portions is attached (13) to the support structure 5 so that the rigid portions 6, 9, 9a, 9b, At least one other rigid part of these rigid parts called inner rigid parts 6 and 56 is configured to be attached 7a to the item 3 of the vibration equipment 2 or to the support 3 of the vibration equipment, 6, 56) extends along a radial axis (-YY) of each blocking module (4) passing through the center of the supporting structure (5), and at least one inner rigid part (6, 56) The rigid portions 9, 9a, 59 are connected to each other by at least one elastomeric barrier pad 12, 52, Wherein at least one inner rigid portion (6, 56) or at least one outer rigid portion (9, 9b) is formed by at least one inner rigid portion , 59 and each having at least two flexible joints (6, 56) with their free ends facing each other without contacting each of the other outer rigid portions (9, 59) or inner rigid portions wherein each of the at least two flexible joints (14, 24, 34, 44, 54) comprises a flexible abutment (14, 24, 34, 44, 54) And the two flexible joints acting as longitudinal joints 14a, 24a, 34a, 44a and 54a are connected to the longitudinal axes of the devices 2 common to the respective interruption modules 4 (-ZZ) on the longitudinal axis (-ZZ), respectively,
Each of the blocking modules 4 being operative in both directions along a tangential axis -XX along a tangential axis -XX perpendicular to the radial axis -YY and the longitudinal axis -ZZ , And two tangential junctions (14b, 24b, 34b, 44b, 54b). 3. The device of claim 1, wherein each of the flexible joints (14a, 14b, 24a, 24b, 34a, 34b, 44a, 44b, 54a, 54b) of the blocking module (4) comprises at least one elastomeric element, Characterized in that said elastomeric element is brought into contact with said other rigid portion (9, 6, 56) towards the elastomeric element when the corresponding flexible joint is in the operative position. 3. A device according to claim 2, characterized in that the elastomeric elements (44, 51) of the at least one flexible joint (44a, 44b, 54a, 54b) in the at least one barrier module (4) 56 and 56 and at the time of rest there is a free end that does not contact these other rigid portions 6 and 56 and the other outer rigid or inner rigid portion faces the elastomeric elements 44 and 51 and the other rigid portions 6 and 56 , And a portion (8, 65) made of metal bosses (56, 56). 4. Device according to any one of the preceding claims, characterized in that at least one blocking module (4) comprises at least one blocking pad, called a tangential pad (12b), mounted on a tangential axis (-XX) And at least one blocking pad, referred to as a longitudinal pad (12a), which is mounted on the housing (-ZZ). Device according to any one of the preceding claims, characterized in that at least one blocking module (4) is mounted symmetrically on both sides of the inner rigid part (6) of the blocking module (4) on the longitudinal axis (-ZZ) Two tangential blocking pads 12b mounted symmetrically on both longitudinal blocking pads 12a or both sides of the inner rigid portion 6 of the blocking module 4 on the tangential axis -XX Characterized in that it is a multi-axial blocking device. 4. Device according to any one of the preceding claims, characterized in that on the at least one blocking module (4) two longitudinal flexible joints (14a) are symmetrical on both sides of the inner rigid part (6) on the longitudinal axis Characterized in that two tangential flexible joints (14b) are mounted symmetrically on both sides of the inner rigid part (6) on the tangential axis (-XX). 4. A device according to any one of the preceding claims, characterized in that all of the flexible joints (24a, 24b, 34a, 34b, 44a, 44b, 54a, 54b) And a single elastomeric element 23, 34, 44, 51 which is attached to one of the outer rigid part (s) 9, 59 (6, 9, 59) and which faces another outer rigid part or inner rigid part 6, respectively Wherein the first and second shafts are configured such that the first and second shafts are closed. 4. A device according to any one of claims 1 to 3, wherein both the blocking pads (52a, 52b) and the flexible joints (54a, 54b) in the at least one blocking module (4) Wherein the first and second shafts are configured to be rotatable. 4. Module according to one of claims 1 to 3, characterized in that at least one blocking module (4) comprises two outer rigid parts (9a, 9b), one outer rigid part (9b) And the other outer rigid portion 9a is connected to the inner rigid portion 6 or one inner rigid portion 6 of the blocking module 4 by the at least one blocking pad 12, Wherein the flexible portion of the joint is attached to the inner surface of the outer rigid portion supporting the flexible joints or to the outer surface of the inner rigid portion or one inner rigid portion. 10. The device according to claim 9, characterized in that the outer rigid portion (9b) supporting the flexible joint (14) is attached to and detached from the support structure (5) at a radially outward position relative to the other outer rigid portion (9a) (13). ≪ RTI ID = 0.0 > 8. < / RTI > Method according to any one of the preceding claims, characterized in that on the at least one blocking module (4), a first inner rigid part (6) is provided on the item of vibrating equipment (2) And is connected to the outer rigid portion (9) of the blocking module (4) via the at least one blocking pad (12) and all of the flexible joining portions (14) are connected to the first inner rigid portion 6, and the flexible portion of the flexible joint is supported by the inner surface of the outer rigid portion or one outer rigid portion or the outer surface of the second inner rigid portion Wherein the fastening means is attached to the fastening means. 12. The device of claim 11, wherein the flexible joint (14) is supported on or about a radially outer end (15b) of the second inner rigid portion (15) configured as a radial end member, The first inner rigid portion (6) is connected to the frame (10) of the one or more outer rigid portions (9) through the at least one blocking pad (12) so that the second inner rigid portion is removable and radially adjustable. Wherein the first inner rigid portion (6) and the second inner rigid portion (15) are radially engaged with each other in the frame (10). 4. Device according to any one of the claims 1 to 3, characterized in that on the at least one blocking module (4), the flexible parts of the flexible joints (24a, 24b, 34a, 34b) are attached to one and the same inner rigid part And is composed of a single elastomeric element (24, 34), the elastomeric element being arranged on the radially outer end portion (8) of the inner rigid part (6), which is generally parallelepipedic or cylindrical in shape, Is engaged with the frame (10) of the engaged shape of the at least one outer rigid portion (9) without being in contact with the frame (10) at rest. 4. Module according to any one of claims 1 to 3, characterized in that on the at least one module (4) the flexible part of the flexible joints (44a, 44b, 54a, 54b) has one identical outer rigid part Shaped elastomeric elements 44 and 54 attached to the interior of the frames 10 and 60 of the outer rigid portion 9 and 59 through the outer surface thereof, 65 surrounding the rigid joints 8, 65 without contacting the rigid joints 8, 65 and the rigid joints are mounted on the radial end members 8, 58 of the inner rigid portions 6, 56 , And an engaging shape protruding outward in the radial direction and engaged with the frames (10, 60) of the outer rigid portions (9, 59). 15. A method according to claim 14, characterized in that the rigid joint (65) is interchangeable and has a parallelepiped or cylindrical shape and is attached to a radially outer end of the radial end member (58) of the inner rigid portion A multi-axial blocking device. Device according to any one of the preceding claims, characterized in that each of the shut-off modules (4) is arranged on the device holding table (3) on which the inner rigid part (6) Characterized in that it has a radial axis (-YY) inclined at one and the same angle (alpha) with respect to the mounting surface of the item. 4. A device according to any one of claims 1 to 3, characterized in that said multi-axial blocking device comprises three identical blocking modules (4). A device according to any of the claims 1 to 3, characterized in that the multi-axial blocking device comprises four identical blocking modules (4) arranged at the vertices of the square and oriented symmetrically about the diagonals (D1, D2) Wherein the multi-axial blocking device comprises:  4. A device according to any one of the preceding claims, characterized in that it has a cross section, a height, a viscoelastic coefficient, an angle between the middle surface of the longitudinal pad (12a) and the inner rigid portion (s) (6) The characteristics of the interruption pads 12a and 12b are such that the characteristics of the interlocking pads 12a and 12b under the operating position of the flexible joints 14a and 14b The frequency function of the transmittance of the stress on the three axes and the torque on the three axes corresponds to the specific template and thus the force and torque transmitted to the support structure 5 by the item of the equipment 2 In order to ensure that low amplitude vibrations are accurately filtered on a given frequency and that effective forces and torques produced by the items of equipment 2 are delivered without harmful deterioration beneath the given frequency Multi-axial blocking Device. 3. A method according to claim 2, wherein the cross-section and height of the elastomer, the viscoelastic coefficient of the elastomer, and the dimensions of the space between the flexible joints (14a, 14b) and the rigid portions (6, 9) The characteristics of the gland joints 14a and 14b are such that too large a deformation of the interrupting pads 12a and 12b is avoided when a large load is applied to the device 1 and thus any damage or undesirable irreversible phenomena While at the same time the frequency function of the transfer rate of the stress on the force and torque on the three axes corresponds to a particular template in the overall operating range expected for the device 1, And the vibrations and shocks having a large amplitude in the force and torque transmitted to the item of the second motor (2) are accurately filtered. The method of claim 1 wherein the item of equipment (2) is an item of aerospace equipment mounted on a satellite and the item of equipment (2) is a reaction wheel, kinetic wheel, momentum wheel , An energy storage wheel, a gyrodine, a gyroscopic actuator, and a CMG, wherein the item of the device (2) is provided with a multi-axis interrupter (1) Wherein said multiaxial interrupter has to withstand static loads and dynamic loads generated upon flaring of the satellite. The method of claim 1, wherein the item of equipment (2) is an item of aerospace equipment mounted on a satellite, and the item of equipment (2) comprises at least one periodic component , Characterized in that it comprises at least one part which is actuated to translationally move in the direction of rotation of the satellite (1), the item of the device (2) being provided with a multi-axial interrupting device (1) A multi-axial blocking device that must withstand loads. 22. The apparatus of claim 21, wherein the multi-axial blocking device blocks a set of items of equipment, wherein at least one item of the set of items of equipment is destructive, all of the items being on one and the same equipment holding table Wherein the fastening means is mounted on the fastening means. 23. The apparatus of claim 21, wherein the multi-axial blocking device blocks part of the satellite to other parts of the satellite.

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